Microsoft Live Search for Firefox is an official Microsoft add-on for Firefox that enables you to search via the Microsoft Live engine. It's not an 'add-on' as such, as it's code that adds the functionality to Firefox. However, it gives you another option and you can see how it compares to the standard supplied Google search engine.
Microsoft Live Search for Firefox link.
Latest Tesla news: Tesla stock price tanks amid reports of 'widening probe' by SEC and claims the base Model 3 loses money
SEC 'probe' takes its toll on Tesla as new research suggests that Tesla loses $6,000 on every $35,000 Model 3
10nm Cannon Lake Core i3-8121U CPUs make a rare outing with Intel's NUC mini PC
'Notorious' Australian child hacker thought he had executed 'flawless' hack
The former employee says that Tesla fired him for bringing the accusations to management internally